DKI在头颈部病变的研究进展  

Magnetic resonance diffusion imaging: clinical research progress of DKI in head and neck lesions

作　　者：程景风(综述) 郑宁[2] 王光彬(审校)[3] CHENG Jingfeng;ZHENG Ning;WANG Guangbin(The Clinical College of JiNing Medical University,Jining 272011,P.R.China;Department of Radiology,Jining No 1 People's Hospital,Jining 272011,P.R.China;Shandong Medical Imaging Research Institute,Jinan 250021,P.R.China)

机构地区：[1]济宁医学院临床医学院,山东济宁272011 [2]山东省济宁市第一人民医院放射科,山东济宁272011 [3]山东大学附属山东省医学影像学研究所,山东济南250021

出　　处：《医学影像学杂志》2019年第5期855-857,860,共4页Journal of Medical Imaging

摘　　要：扩散加权成像(diffusion weighted imaging,DWI)模型假设人体内水分子扩散运动为符合高斯分布的随机运动,而大部分活体组织内水分子扩散运动受限,并不完全符合高斯分布。因此,传统DWI所获得的扩散信息与真实的体内扩散运动存在一定程度的偏离。基于非高斯分布的扩散峰度成像(diffusion kurtosis imaging,DKI)模型的相关临床应用已成为目前研究的热点。以下主要介绍DKI的基本原理及其在头颈部病变中的临床研究进展。The diffusion weighted imaging(DWI)model assumes that the diffusion motion of water molecules in human body is a random movement in accordance with gaussian distribution,while,the diffusion motion of water molecules in most living tissues is limited,which is not completely consistent with gaussian distribution.Therefore,the diffusion information from DWI has a certain degree of deviation.The related clinical application research of diffusion kurtosis imaging(DKI)model based on non-gaussian distribution is the hotspot currently.This article mainly introduces the basic principle of DKI and its clinical research progress in head and neck lesions.

关 键 词：头颈部病变 磁共振成像 

分 类 号：R445.2[医药卫生—影像医学与核医学] R739.8[医药卫生—诊断学]